Generation of ortho-quinone methides upon thermal extrusion of sulfur dioxide from benzosultones |
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| Authors: | Krzysztof Wojciechowski Karolina Dolatowska |
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| Institution: | a Institute of Organic Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, PO Box 58, 01-224 Warszawa 42, Poland
b Department of Chemistry, Technical University, ul. Koszykowa 75, 00-664 Warszawa, Poland |
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| Abstract: | 3H-1,2-Benzoxathiole 2,2-dioxides (benzosultones) undergo thermal extrusion of sulfur dioxide to form ortho-quinone methides that enter Diels-Alder reaction with maleimides to form chroman 2,3-dicarboxylic acid derivatives. |
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| Keywords: | o-Quinone methide Diels-Alder Cycloaddition Cheletropic extrusion Chroman |
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